package chapter04.demo1;
class Animal{
    private  String name;
    private  int age;
    public String getName (){
        return name;
    }
    public void setName (String name){
        this.name = name;
    }
    public int getAge(){
        return age;
    }
    public void setAge (int age){
        this.age = age;
    }
}
class Dog extends  Animal{

}
public class Example01 {
    public static void main(String[] args) {
        Dog dog = new Dog();
        dog.setName("牧羊犬");
        dog.setAge (3);
        System.out.println("名称："+dog.getName ()+",年龄："+dog.getAge());
    }
}
